package com.yidian.dao;

import com.yidian.pojo.goods.Brand;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import tk.mybatis.mapper.common.Mapper;

import java.util.List;
import java.util.Map;

/**
 * @author whb
 * @create 2021-05-06 17:34
 */
public interface BrandMapper extends Mapper<Brand> {
    /**
     * 根据商品分类查询品牌列表
     * @param categoryName
     * @return
     */
    @Select("SELECT name,image FROM tb_brand WHERE id IN(" +
            "SELECT brand_id FROM tb_category_brand WHERE category_id IN (" +
            "SELECT id FROM tb_category WHERE NAME=#{categoryName}" +
            ")" +
            ") order by seq")
    public List<Map> findBrandListByCategoryName(@Param("categoryName") String categoryName);
}
